package homework4;

public class Demo {
    public static void main(String[] args) {
        Outer.Inner obj = new Outer().new Inner();
        obj.show();
    }
}

class Outer {

    public int number = 10;

    class Inner {

        public int number = 20;

        public void show() {

            int number = 30;

            System.out.println(number);//30
            System.out.println(this.number);//20
            System.out.println(Outer.this.number);//10
        }
    }
}